Appendix
Installation instructions geoTHERM 0020051574_04
127
17
brown
grey
black
brown
grey
black
L3
L2
L1
PE
Compressor
yellow-green
Pressure
sensors
Pressure sensor
Heating circuit
Pressure sensor
Brine circuit
Low-pressure
sensor
High-pressure
sensor
Temperature sensors
AMU
Fuse
T4A/250 V
Fuse
T4A/250 V
Phase monitoringPhase monitoring
brown
grey
black
L1
L2
L3
1
L
N
1
2
SCH
21
7
LN
8
21
AS
B
L
N
2
L
N
3
L
N
4
LN
6
L
N
5
12
VF2
12
RF1
12
VF1
-
+
BUS
12
EV
U
12
1xZP
DCF
O
T
AF
DCF
/AF
N
L
ZH
N
On
Of
f
LP
/UV 1
N
L
SK2
-P
N
L
SK2
-P
N
L
HK2
-P
N
On
Of
f
HK2
12
SP
blue
brown
yellow-green
blue
brown
yellow-green
brown
yellow-green
orange
orange
red
black
blue
grey
white
white
blue
brown
L1
L2
L3
Co
n
tro
l
c
o
nt
act
or
Brine pump T1
T2
T3
A1
A2
L1
L2
L3
Pr
ot
ect
or
c
o
nt
act
or
Brine pump T1
T2
T3
A1
A2
95
96
L1
L2
L3
Ext
ernal aux.
he
at
er
c
o
nt
act
or
T1
T2
T3
A1
A2
L1
L2
L3
Pr
ot
ect
or
c
o
nt
act
or
C
ompr
e
s
s
or
T1
T2
T3
A1
A2
PE
orange
black
orange
blue
M1
T2
M2
T1
blue
black
grey
brown
1
2
3
4
5
6
blue
brown
brown
grey
black
black
black
brown
grey
black
brown
grey
black
Thermal
overcurrent
relay
brown
grey
black
C
onnection
W
ell pump
L1
PE
L
N
L2
L3
L1
PE
L
N
L2
L3
yellow-green
blue
black
grey
brown
1
2
3
4
5
6
vrnetDIALOG
L
N
PE
L3
L2
L1
N
PE
L
N
PE
L
N
PE
L3
N
PE
L2
L1
L3
N
L3
L2
L1
N
PE
L3
L2
L1
N
PE
Ext
ernal auxiliary he
at
er
(t
o be fit
ted on-sit
e
)
He
ating cir
c
uit
pump (
to be
fit
ted on-sit
e
)
Primary
mains supply
3
00 x 400 V PEN
blue
blue
blue
blue
black
grey
brown
black
grey
brown
yellow-green
blue
brown
brown
blue
grey
black
black
grey
brown
black
brown
blue
yellow-green
M
W
ell pump
(t
o
be fit
ted
on-sit
e
)
p
p
High-pressure
switch
Low-pressure
switch
p
Flow-
switch
Start-up current limiter
W
L3
L2
L1
V
U
X2
black
black
X1
X3
brown
grey
black
orange
orange
brown
grey
black
black
black
17.6 Appendix,
Electrical circuit diagram VWW 380/2 - VWW
460/2